User profiles for Moritz Helias
Moritz HeliasInst. for Neuroscience and medicine (INM-6), Jülich; Faculty of Physics, RWTH Aachen Verified email at fz-juelich.de Cited by 2997 |
Optimal sequence memory in driven random networks
Autonomous, randomly coupled, neural networks display a transition to chaos at a critical
coupling strength. Here, we investigate the effect of a time-varying input on the onset of chaos …
coupling strength. Here, we investigate the effect of a time-varying input on the onset of chaos …
[HTML][HTML] The correlation structure of local neuronal networks intrinsically results from recurrent dynamics
Correlated neuronal activity is a natural consequence of network connectivity and shared
inputs to pairs of neurons, but the task-dependent modulation of correlations in relation to …
inputs to pairs of neurons, but the task-dependent modulation of correlations in relation to …
Computational neuroscience: Mathematical and statistical perspectives
Mathematical and statistical models have played important roles in neuroscience, especially
by describing the electrical activity of neurons recorded individually, or collectively across …
by describing the electrical activity of neurons recorded individually, or collectively across …
[HTML][HTML] A unified view on weakly correlated recurrent networks
The diversity of neuron models used in contemporary theoretical neuroscience to investigate
specific properties of covariances in the spiking activity raises the question how these …
specific properties of covariances in the spiking activity raises the question how these …
[HTML][HTML] PyNEST: a convenient interface to the NEST simulator
The neural simulation tool NEST (http://www.nest-initiative.org) is a simulator for heterogeneous
networks of point neurons or neurons with a small number of compartments. It aims at …
networks of point neurons or neurons with a small number of compartments. It aims at …
[HTML][HTML] Decorrelation of neural-network activity by inhibitory feedback
Correlations in spike-train ensembles can seriously impair the encoding of information by
their spatio-temporal structure. An inevitable source of correlation in finite neural networks is …
their spatio-temporal structure. An inevitable source of correlation in finite neural networks is …
[HTML][HTML] Spiking network simulation code for petascale computers
Brain-scale networks exhibit a breathtaking heterogeneity in the dynamical properties and
parameters of their constituents. At cellular resolution, the entities of theory are neurons and …
parameters of their constituents. At cellular resolution, the entities of theory are neurons and …
[HTML][HTML] Extremely scalable spiking neuronal network simulation code: from laptops to exascale computers
State-of-the-art software tools for neuronal network simulations scale to the largest computing
systems available today and enable investigations of large-scale networks of up to 10% of …
systems available today and enable investigations of large-scale networks of up to 10% of …
[HTML][HTML] Run-time interoperability between neuronal network simulators based on the MUSIC framework
MUSIC is a standard API allowing large scale neuron simulators to exchange data within a
parallel computer during runtime. A pilot implementation of this API has been released as …
parallel computer during runtime. A pilot implementation of this API has been released as …
[BOOK][B] Statistical field theory for neural networks
Many qualitative features of the emerging collective dynamics in neuronal networks, such
as correlated activity, stability, response to inputs, and chaotic and regular behavior, can be …
as correlated activity, stability, response to inputs, and chaotic and regular behavior, can be …